Setup for Client Firewall Support Using the DirectPlay Dynamic Range

To join a game through a firewall, the client must be using DirectX 6.0 or later and communicating with a host using DirectX 6.0 or later. To support applications using the DirectPlay dynamic range, a firewall administrator needs to allow an initial outbound TCP connection on port 47624, with subsequent connections of inbound TCP ports 2300-2400, outbound TCP ports 2300-2400, inbound UDP ports 2300-2400, and outbound UDP ports 2300-2400. For a chart highlighting these requirements, see the Dynamic Range Port Reference Chart.

Example of a Microsoft Proxy Server 2.0 Configuration:

• Internet Service Manager, Windows Sockets Proxy service: Service Properties
  • Add protocol "DirectPlay (client)" under Protocols tab.
    • Initial connection
      • 47624 TCP Outbound
    • Subsequent connections
      • 2300-2400 TCP Inbound
      • 2300-2400 TCP Outbound
      • 2300-2400 UDP Inbound
      • 2300-2400 UDP Outbound
  • Give appropriate permissions to "DirectPlay (client)" under Permissions tab.
• Add to file "mspclnt.ini", which is in the C:\Msp\Clients folder by default.
  • [Common Configuration]
  • RemoteBindUdpPorts=2300-2400
  • ServerBindTcpPorts=2300-2400
  • KillOldSession=1